some part of a journey of 730 km was completed by a car with the speed of 60 km/he then the speed is reduced by 10 km/hr and the journey is completed if it takes 13 hrs to complete the journey find the time taken and the distance covered at the reduced speed
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Answer: Total time taken➡ 8 hours.
distance at reduced speed➡ 250 km.
Step-by-step explanation:
1.) distance at 60 kmph. + distance at (60-10=50) kmph. = total distance.
➡(t×60) + {(13-t)×50} = 730
➡ 60t+650-50t=730
➡ 10t=730-650
➡ t=80/10 ➡ t=8 hours.
2.) distance at reduced speed =
➡(13-t)×50
➡(13-8)×50=5×50=250 km.
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